Finding the Third Proportional to 1,269,072 and 1,868,520

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269,072 : 1,868,520 = 1,868,520 : x
2. Step 2: Convert to fraction form
   1,269,072/1,868,520 = 1,868,520/x
3. Step 3: Cross multiply
   1,269,072x = 1,868,520 × 1,868,520
4. Step 4: Simplify right side
   1,269,072x = 3,491,366,990,400
5. Step 5: Solve for x
   x = 3,491,366,990,400/1,269,072
6. Step 6: Final answer
   x = 2,751,118.13